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Multiple-boot with Platform Flash PROMs

Posted: 13 Sep 2008 ?? ?Print Version ?Bookmark and Share

Keywords:multiple bootm platform flash PROMs? Xilinx FPGA?

Some applications take advantage of the ability to change the configuration of a Xilinx FPGA at each boot-up, changing the FPGA's functionality as required. The ability to change the FPGA configuration is made easy with the Xilinx Platform Flash XCFxxP PROM's Design Revisioning feature, which allows the user to store multiple configurations as different revisions in a single PROM. With the addition of a small amount of logic internal to the FPGA, the user can dynamically switch between up to four different revisions on the PROM. Multiple-Boot, or the ability to dynamically reconfigure from multiple Design Revisions, is similar to the MultiBoot option offered with Spartan-3E FPGAs when used with third-party parallel flash PROMs.

This application note will further describe how Platform Flash PROMs provide additional options for enhancing safety in the event of failed configuration, as well as reducing pin count and board space. Moreover, Platform Flash PROMs provide the user with additional advantages: iMPACT programming support, a single-vendor solution, low-cost board design, plus faster configuration loading.

View the PDF document for more information.

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